I have now so may different recent builds from different branches, each trying to solve different issues but also some introducing new issues, that I lost track of which is which. You can solve the cursor issue in High Sierra by simply replacing the SDL.framework file within the SheepShaver application bundle (also in my 2014 build) with the one that was patched by kanjitalk755.

I posted a version of my 2014 build that includes this patched SDL file here:viewtopic.php?f=20&t=7360(See second download link.)